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40 <br />The occurrence of floods is an important concern for communities with <br />coasts subject to storm events, or for any community with waterbodies <br />and waterways having flood hazard areas. A flood hazard is any land <br />area that is susceptible to being inundated by water from any source. <br />Flooding is a temporary condition of partial or complete inundation of <br />normally dry land areas. Floods can occur throughout the Indian River <br />County area anytime during the year; however, they are most frequent <br />during the rainy season from May to October. The streams and canals <br />in the low area between the parallel ridges, as well as those that <br />discharge into the St. John's River, are subject to flooding from <br />prolonged heavy rainfalls. <br />Low, swampy, inland areas are subject to flooding during wet periods <br />and coastal areas of the county are subject to storm surge flooding <br />resulting from hurricane or tropical storm activity. Areas along the Indian <br />River Lagoon may also experience flooding from storm surge caused by <br />hurricane winds piling water against shorelines, causeways and bridges. <br />A diagram of flood prone areas is attached to this document and <br />identified as Figure 2. <br />Indian River County Comprehensive Emergency Management Plan Basic Page 39